It has enough vertical and horizontal stiffness to stably support the superstructure and ensure that the basic period of the superstructure is extended to 1.5-3.0 seconds.Horizontal stiffness is less affected by vertical compression load.Large enough horizontal deformation capacity to ensure that there will be no instability under strong earthquakes.Excellent cycle fatigue resistance, acid and alkali resistance.We use a high purity lead core in our lead rubber bearings, which is free of any impurities. Bearing surfaces are coated with a rubber layer to protect the inner rubber. Sufficient durability, larger than the design life of general building structures.If you have any needs, please feel free to contact us. We can also customize according to customer needs. As a professional supplier of bridge bearings, Boomarine provides high-quality lead rubber bearings and has passed various professional certifications. The lead bar is considered an ideal damper because of its low yield strength and good fatigue property under elastic-plastic deformation. The energy absorption effect of lead rubber bearing is mainly achieved by the elastic-plastic deformation of lead. At the same time, the existence of a lead core increases the early stiffness of the bearing, which is beneficial to controlling the wind response and resisting the micro-vibration of the foundation. Under the repeated action of load, the lead rubber bearing can maintain good fatigue resistance and durability. Because the damping can be chosen by adjusting the diameter or section of the lead core, the design of the support has great flexibility. The lead core rubber bearing is formed by pressing the lead core with a purity of 99.9% vertically into the center or around the plate rubber bearing. The lead core can not only withstand heavy loads and horizontal forces, but also absorb energy through the plastic deformation of hysteresis damping. The lead used to make the lead rubber bearing is a malleable metal material. Generally, the rubber of the lead rubber bearing is natural rubber, which is more flexible than the elastic bearing. It consists of multi-layer elastic material and vulcanized reinforced steel plate with central lead core. Lead Rubber Bearing (LRB), also known as lead-core rubber bearing, is similar to high damping rubber bearing, which is an important part of vibration isolation bearing.
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